Swaption Volatility Data
FinPricing offers:
Four user interfaces:
- Data API.
- Excel Add-ins.
- Model Analytic API.
- GUI APP.
FinPricing offers the following curves for various currencies via API:
Swaption implied volatility cube is a four dimensional plot of the implied volatility as a function of strike, swaption expiry, and underlying swap tenor.
In the past, interest rate was always positive and hence the Black-Scholes was based on lognormal assumption. Consquently interest rate implied volatility is quoted via absolute strikes. After finanacial crises, interest rates in many regions turn negative. Consequently interest rate option pricing model evolves from lognormal assumption to normal assumption, resulting relative strike representation of swaption implied volatility.
The data volume of a swaption volatility surface is enormous. A partial quoted swpation implied volatility surface is shown below:
| ValuationDate | Expiry | Tenor | Strike | Volatility | 
|---|---|---|---|---|
| ... | ... | ... | ... | ... | 
| 2020-02-12 | 1M | 1Y | 0.01 | 0.528341118 | 
| 2020-02-12 | 1M | 1Y | 0.02 | 0.208871904 | 
| 2020-02-12 | 1M | 1Y | 0.03 | 0.315791907 | 
| 2020-02-12 | 1M | 1Y | 0.04 | 0.392419764 | 
| 2020-02-12 | 1M | 1Y | 0.05 | 0.447727552 | 
| 2020-02-12 | 1M | 1Y | 0.07 | 0.524478308 | 
| 2020-02-12 | 1M | 1Y | 0.1 | 0.59765607 | 
| 2020-02-12 | 1M | 1Y | 0.12 | 0.631982811 | 
| ... | ... | ... | ... | ... | 
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